ANOMIA. 31 
Measurements : 
Length 2 ; : , & 7 mom. 
Height : ; : ‘ Ete eGs 
Remarks.—This form may perhaps be related to A. papyracea, d’Orbigny, but 
without better specimens I am unable to make any definite statement con- 
cerning it. 
Types.—I have not seen the specimen figured by Seeley, but other examples to 
which he refers are preserved in the Woodwardian Museum, Cambridge. 
Distribution. —Cambridge Greensand. 
Anomia papyracea, d’Orbigny, 1847. Plate V, figs. 13—16. 
1847. ANomta Papyracea, A. d’Orbigny. Pal. Franc. Terr. Crét., vol. iii, p. 755, 
pl. eeeelxxxix, figs. 7—10. 
1850. Anomya paprracea, A. d’Orbigny. Prodr. de Pal., vol. ii, p. 171. 
1881. Awnomta papyracea, A. d’Orbigny, var. BURWELLENSIS, Ft. Etheridge. In 
Penning and Jukes-Browne, Geol. Neighbourhood 
of Cambridge (Mem. Geol. Survey), p. 145, pl. i, 
figs. 3, 4. 
Description.—Shell more or less oval, longer than high, nearly smooth, but 
sometimes with faintly marked concentric ribs. Left valve slightly convex ; 
umbo small, near the margin. Right valve flat or shehtly concave. 
Measurements : 
() 2) (3) 
Length . : 3: 35 28 mm. 
Height : ; aR : ; DAD) : Qe, 
Affinities.—This species is distinguished from 4d. levigata, Sowerby, by its 
oval form and lesser convexity. 
Types.—The type is not in the d’Orbigny Collection. The specimens figured 
by Etheridge are in the Woodwardian Museum, Cambridge. 
Distribution.—Totternhoe Stone (zone of Holaster subglobosus) of Burwell and 
Reach. 
